CN103289531A - Underwater coating anti-pollution and anti-corrosion epoxy coating and preparation method thereof - Google Patents
Underwater coating anti-pollution and anti-corrosion epoxy coating and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an underwater coating anti-pollution and anti-corrosion epoxy coating and a preparation method thereof. The underwater anti-pollution and anti-corrosion epoxy coating provided by the invention can solve the difficult problem that an amine type curing agent which is matched with the epoxy coating used at normal temperature for underwater coating reacts with water and carbon dioxide in the water or air to generate carbonates, so that a bonded layer is isolated by the carbonates, the adhesion is greatly reduced, the bonding force is reduced by above 50% in comparison with a dry environment, a coat is easy to shed, and the anti-corrosion capability is poor. The anti-pollution and anti-corrosion coating disclosed by the invention has the advantages of good underwater coating anti-corrosion performance, strong adhesion, great impact resistance and good flexibility, and can effectively prevent the problems that a paint film is damaged, and the damages and corrosion of a steel plate and concrete are accelerated due to the parasitic attachment of marine organisms.
Description
Technical field
The present invention relates to technical field of coatings, be specifically related to antifouling anticorrosion epoxy coating of a kind of painting under water and preparation method thereof.
Background technology
Along with constant development of economy, process is more and more under water, the continuous development of marine oil, port and pier, hydropower station and shipping industry, engineerings such as dyke, reservoir, sluice, underwater pipeline, and mine, tunnel, bathing pool, hot spring, swimming pool, tank, aqua storage tank, underground storehouse etc. are moist local, all need to solidify in the water heavy-duty coating, kind more than 18000 is arranged is epizoite to the biology in each sea area, the world in addition, and kind more than 600 is attached plant.Behind the hydrodis, increase resistance, reduce the speed of a ship or plane, the fuel consumption increases, and the wearing and tearing of machinery increase.Adhering to of marine life also destroys paint film, and the burn into that accelerates steel plate or concrete for hydraulic structure structure destroys, and has not only increased maintenance number of times and the time of boats and ships, and reduced boats and ships in the boat rate.Concerning naval vessels, marine life greatly influences the speed of a ship or plane.
Accordingly, develop a kind of can application in water, have the antifouling epoxy coating of rot-resistant again concurrently and have great importance.
The eighties, all coating manufacture and the exploitations in being devoted to the water of practicability of each state.It is reported that Britain international standard does not have the underwater engineering rust proof paint that the erosion paint company is released epoxy one tar oil type, it is not water funk, can be directly at subaqueous work.The chemical stability of coating, water tolerance, hydrophobicity and toughness are all good.The Resins, epoxy one polyamines curing system that SUMITOMO CHEMICAL chemical company releases, coating absorbs the water of substrate surface rapidly, and coating and ground are combined closely.Gradually the moisture content that absorbs is rejected to coatingsurface again in the solidification process, guarantees the integrity of coating system.
More original coating of " two component Wet-dry priming paint " life-span of domestic Wuhan Water Transporting Engineering College exploitation improves 3-5 doubly, can be at drying, humidity even subaqueous work.Sea rescue Salvage Bureau in Shanghai entrusts the subaqueous work protective system of Shanghai coating Research Institute to be tested and appraised March nineteen ninety.This coating has entered the practicability stage through on probation for many years, and its composition mainly is Resins, epoxy one polyamide system.The key problem in technology of coating is auxiliary agent and specific construction equipment.
" the thick slurry protective system of a kind of low temperature epoxy " of domestic Qingdao Pacific Ocean company limited exploitation uses 1085 underwater epoxy solidifying agent and the Changsha chemical industry that the development of biochemical technology company limited is illuminated in Changsha to grind the underwater epoxy protective system of the 810 moist type epoxy hardener mixed preparing of producing, effectively solve the difficult problem that general epoxy coating painting under water cohesive strength sharply descends with 1085 solidifying agent, with the problem of 810 solidifying agent solution low-temperature curing, painting under water is obtained better effects.In a word, coating material solidified at the early-stage in the domestic water, with real practicability one segment distance is arranged still.
At present, the matured product of underwater coating heavy corrosion protection coating is the protective system under water of 100 parts of solid contents of ES323 type of the excellent imperial company of Portugal production, and this coating is used in a lot of countries.The 9400 serial aqueous solidified epoxy coatings that the advanced paint company of U.S. AEGEON is produced not only can provide the erosion resistance protection for equipment and the material of underwater operation, but also can be applied in the environment place of high humidity.Because the external product price is more expensive, is difficult in domestic big area and promotes.
So far, all kinds of coating of painting under water are base-material with Resins, epoxy all basically, are mixed with the coating of solvent-free or high solid.Have a variety of on the common epoxy curing agent market, but with the preparation of common epoxy curing agent epoxy coating, when running into the environment of water or humidity, with in the water or carbon dioxide in air reaction generate carbonate, cause tack coat to be isolated by carbonate, cause coating adhesion extremely to descend and easily come off, antiseptic power is poor.
Have simultaneously and can painting under water have antifouling and anti-corrosion function concurrently and keep the corrosion-resistant epoxy paint of good sticking power not appear in the newspapers.
Summary of the invention
At the defective of prior art, the invention provides a kind of energy painting under water and have epoxy coating of antifouling anticorrosion binomial function and preparation method thereof, this coating antifouling anticorrosion binomial performance under water is good, strong adhesion, impact strength is big.
In order to achieve the above object, technical scheme provided by the invention is:
The antifouling anticorrosion epoxy coating of described painting under water is made up of A component and B component, and the weight ratio of described A component and B component is 3-5:1, is preferably 4:1;
Described A component comprises the composition of following weight part:
Bisphenol A epoxide resin 40-50 part, thinner 4-8 part, wetting agent 0.15-0.35 part, defoamer 0.1-0.35 part, flow agent 0.05-0.35 part, stain control agent 5-15 part, anticorrosive packing 15-30 part, 2-8 parts of thixotropic agent, auxiliary packing 5-18 part, pigment 0-8 part;
Described B component comprises the composition of following weight part:
22-28 parts in solidifying agent is preferably 25 parts, and 0.72-0.78 part of coupling agent is preferably 0.75 part, and 1.5-2.5 parts of thixotropic agent are preferably 2.5 parts.
Wherein, in the described A component: bisphenol A epoxide resin is E-44 and/or E-51; Thinner is KB-62; Wetting agent is BYK-307 or BYK-P104S; Defoamer is BYK-A530; Flow agent is BYK-361N; Stain control agent is Mocide CD-30 or Mocide88; Anticorrosive packing is glass flake or iron mica; Thixotropic agent is white carbon black, and auxiliary packing is one or more in aluminium triphosphate, barium sulfate or the talcum powder; Pigment is one or both in titanium dioxide or the ferric oxide, and described ferric oxide comprises iron oxide yellow, red iron oxide, iron oxide blue, iron oxide green or iron oxide black;
In the described B component: solidifying agent is 1085B and/or 1085C; Coupling agent is silane coupling agent, and preferred silane coupling agent is ND-42, KH550 or KH560; Thixotropic agent is white carbon black.
Prepare the method for above-mentioned coating, comprise the steps:
(1) preparation A component: bisphenol A epoxide resin, thinner, wetting agent, defoamer and flow agent are poured in the dispersed with stirring still stirred according to the above ratio; Adding sanitas stirs; Adding thixotropic agent stirs; Add auxiliary packing and pigment, stir; Mixture after grinding stirs adds anticorrosive packing at last and stirs, and is standby;
(2) preparation B component: solidifying agent, coupling agent and thixotropic agent are joined in the encloses container stir according to the above ratio, standby;
(3) the B component for preparing of the A component that step (1) is prepared and step (2) mixes according to the above ratio, namely gets coating.
Preferably, described step (1) is: in described ratio bisphenol A epoxide resin, thinner, wetting agent, defoamer and flow agent are poured in the dispersed with stirring still, by 500-700 rev/mins, the rotating speed that is preferably 600 rev/mins stirs; Add stain control agent, by 200-400 rev/mins, the rotating speed that is preferably 300 rev/mins stirs; Add thixotropic agent, by 200-400 rev/mins, the rotating speed that is preferably 300 rev/mins stirs; Add auxiliary packing and pigment, by 200-400 rev/mins, the rotating speed that is preferably 300 rev/mins stirs; It is 20-30 μ m that mixture after grinding stirs makes its particle diameter; Add anticorrosive packing at last, by 500-700 rev/mins, the rotating speed that is preferably 600 rev/mins stirs, and packages spare.
Below the invention will be further described:
The thinner KB-62 that uses among the present invention uses as toughner again as thinner, and KB-62 has characteristics: be active epoxy diluent resin of new generation, Halogen, tasteless, colourless, dilution capacity is strong, and is alternative traditional as Racemic glycidol ethers thinners such as 501,692,748
1) do not contain halogen, content of halogen is lower than 50ppm, is particularly suitable for the electronic material industry and to the demanding goods of content of halide ions;
2) colourless, tasteless, nonirritant is specially adapted to high solid and non-solvent epoxy system;
3) splendid dilution capacity, the addition of 10phr can be low to moderate the viscosity drop of Resins, epoxy original 1/5～1/10;
4) for aliphatic amide or polyetheramine system, KB-62 does not prolong crosslinking time, even can accelerate crosslinking reaction, can be at shorter time inner gel;
5) KB-62 can promote the performance of crosslinked back Resins, epoxy, has better elasticity;
6) effectively suppress pasta and the albinism on cured article surface, make coating have higher gloss.There are good mutual solubility and cured article not to overflow with Resins, epoxy and solidifying agent, improve the snappiness of filming after solidifying simultaneously, and can improve the sticking power of filming with ground.
The wetting agent that the present invention adopts is BYK-307, and it has special interfacial activity, can help pigment wetting and decondensation, and it can be adsorbed on surface of pigments and prevent from returning slightly,
The defoamer that the present invention adopts is BYK-A530, belongs to high viscosity, solvent-free system dedicated defoamer.
The flow agent that the present invention adopts is BYK-361N, and it is little to have a consumption, and levelling is effective.
The stain control agent Mocide CD-30 or the Mocide88 that use among the present invention, these two kinds of products have the high-efficiency broad spectrum mildew-resistant, kill the algae function, have been widely used in the paint of ocean.Can effectively prevent marine organisms adhering on hull, the performance of painting for the ocean has no adverse effects.Be to substitute poisonous organo-tin compound TBTO (two (tri-n-butyl tin) oxide compound) and the optimal selection of iso thiazoline ketone compound Sea-Nine211.Product has characteristics:
1) up-to-date slow release method, the preventing fungi, marine alga and other marine organisms adhering on hull of broad-spectrum high efficacy.
2) stable in paint, lasting protection can be provided, meet or exceed the effect of TBTO and Sea-Nine211.
When 3) being discharged in the environment, can infiltrating rapidly in the marine sediment and decompose, thereby in marine organisms, can not accumulate; Stable under intensive ultraviolet and acid rain condition.
The B component is selected among the present invention 1085B epoxy hardener and 1085C epoxy hardener, these two kinds of solidifying agent have following characteristics:
Modification alicyclic ring amine underwater epoxy resin solidifying agent, has excellent corrosion resisting performance, when using fully under water, " albefaction " phenomenon can not appear, bonding strength is compared conservation rate more than 95% when using under water with dry environment, under water, moist, under the low temperature conditions such as (0 ℃), equal energy cured epoxy resin, has good wetting property and toughness simultaneously, illuminate the development and production of biochemical technology company limited by Changsha, different with 1085 underwater epoxy solidifying agent of the said firm former development, be embodied in half that have only 1085 solidifying agent with Resins, epoxy proportioning usage quantity, overcome former 1085 solidifying agent wettability and poor toughness simultaneously, low-temperature curing needs more slowly and the shortcoming that solves wettability and low-temperature curing is used in the collocation of 810 solidifying agent, and cost performance has a distinct increment.
Compared with prior art, beneficial effect of the present invention is:
1, antifouling anticorrosion epoxy coating under water provided by the invention has solved in amine curing agent supporting in the epoxy coating of painting under water normal temperature use and water and the water or carbon dioxide in air reaction generation carbonate, cause bonded layer to be isolated by carbonate and cause that sticking power extremely descends, compare cohesive force with dry environment and descend more than 50%, coating this difficult problem of antiseptic power difference that easily comes off.All have excellent painting under water performance at 5-45 ℃, cost performance has a distinct increment.
2, painting under water strong adhesion antiseptic property is good under water for antifouling protective system of the present invention,, impact strength is big, and snappiness is good.
3, antifouling protective system of the present invention can effectively prevent that halobiontic parasitism from adhering to the paint film that causes and destroying simultaneously, accelerates the problem of steel plate, concrete destruction and corrosion.
Embodiment
For a better understanding of the present invention, do detailed description further below in conjunction with the present invention of embodiment, but the scope of protection of present invention is not limited to the scope that embodiment represents.
Example 1: whitewash (metal construction or concrete structure are used)
The antifouling anticorrosion epoxy coating of described painting under water is made up of A component and B component, and the weight ratio of described A component and B component is 4:1;
Described A component comprises the composition of following weight part:
Described B component comprises the composition of following weight part:
Solidifying agent 1085B25 part, coupling agent KH5500.75 part, 2.5 parts of white carbon blacks.
The preparation method of the antifouling anticorrosion epoxy coating of above-mentioned painting under water comprises the steps:
(1) preparation of A component: in described ratio Resins, epoxy epoxy resin E-44, thinner KB-62, wetting agent BYK-307, defoamer BYK-A530 and flow agent BYK-361N are poured in the dispersed with stirring still successively, stir by 600 rev/mins rotating speeds; Add stain control agent Mocide CD-30, stirred 20 minutes by 300 rev/mins rotating speeds, back adding white carbon black stirs, stirred 20 minutes by 300 rev/mins rotating speeds, back adding titanium dioxide and talcum powder, barium sulfate stir, stirred 20 minutes by 300 rev/mins rotating speeds, to being uniformly dispersed; It is 20-30 μ m that mixture after grinding stirs makes its particle diameter; Add glass flake at last, stirred 40 minutes by 600 rev/mins rotating speeds, package spare after evenly disperseing.
(2) preparation B component: solidifying agent 1085B, coupling agent KH550 and white carbon black are joined in the encloses container stir according to the above ratio, package spare;
(3) the B component for preparing of the A component that step (1) is prepared and step (2) mixes according to the above ratio, namely makes the antifouling anticorrosion epoxy glass flake coating under water of white, and its performance data sees Table 1.
Table 1
Embodiment 2: red-brown (metal construction is used)
The antifouling anticorrosion epoxy coating of described painting under water is made up of A component and B component, and the weight ratio of described A component and B component is 4:1;
Described A component comprises the composition of following weight part:
Described B component comprises the composition of following weight part:
Solidifying agent 1085B12 part, solidifying agent 1085C13 part, coupling agent KH5500.75 part, 1.5 parts of white carbon blacks.
The preparation method of the antifouling anticorrosion epoxy coating of above-mentioned painting under water comprises the steps:
(1) preparation of A component: in described ratio Resins, epoxy epoxy resin E-44, thinner KB-62, wetting agent BYK-P104S, defoamer BYK-A530 and flow agent BYK-361N are poured in the dispersed with stirring still successively, stir by 600 rev/mins rotating speeds; Add stain control agent Mocide CD-30, stirred 20 minutes by 300 rev/mins rotating speeds, back adding white carbon black stirs, stirred 20 minutes by 300 rev/mins rotating speeds, back adding aluminium triphosphate, talcum powder, barium sulfate stir, stirred 20 minutes by 300 rev/mins rotating speeds, to being uniformly dispersed; It is 20-30 μ m that mixture after grinding stirs makes its particle diameter; Add mica iron oxide red at last, stirred 40 minutes by 600 rev/mins rotating speeds, package spare after evenly disperseing.
(2) preparation B component: solidifying agent 1085B, 1085C, coupling agent KH550 and white carbon black are joined in the encloses container stir according to the above ratio, package spare;
(3) the B component for preparing of the A component that step (1) is prepared and step (2) mixes according to the above ratio, namely makes red antifouling anticorrosion epoxy micaceous iron coating under water, and its performance data sees Table 2.
Table 2
Embodiment 3: yellow (metal construction is used)
The antifouling anticorrosion epoxy coating of described painting under water is made up of A component and B component, and the weight ratio of described A component and B component is 4:1;
Described A component comprises the composition of following weight part:
Described B component comprises the composition of following weight part:
Solidifying agent 1085C25 part, coupling agent KH5500.75 part, 2.5 parts of white carbon blacks.
The preparation method of the antifouling anticorrosion epoxy coating of above-mentioned painting under water comprises the steps:
(1) preparation of A component: in described ratio Resins, epoxy epoxy resin E-44, thinner KB-62, wetting agent BYK-P104S, defoamer BYK-A530 and flow agent BYK-361N are poured in the dispersed with stirring still successively, stir by 600 rev/mins rotating speeds; Add stain control agent Mocide88, stirred 20 minutes by 300 rev/mins rotating speeds, the back that stirs adds white carbon black, stirred 20 minutes by 300 rev/mins rotating speeds, add talcum powder and iron oxide yellow after stirring, stirred 20 minutes by 300 rev/mins rotating speeds, to being uniformly dispersed; It is 20-30 μ m that mixture after grinding stirs makes its particle diameter; Add glass flake at last, stirred 40 minutes by 600 rev/mins rotating speeds, package spare after evenly disperseing.
(2) preparation B component: solidifying agent 1085C, coupling agent KH550 and white carbon black are joined in the encloses container stir according to the above ratio, package spare;
(3) the B component for preparing of the A component that step (1) is prepared and step (2) mixes according to the above ratio, namely makes yellow antifouling anticorrosion epoxy glass flake coating under water, and its performance data sees Table 3.
Table 3
Embodiment 4: grey (5-10 ℃ concrete or metal construction with)
The antifouling anticorrosion epoxy coating of described painting under water is made up of A component and B component, and the weight ratio of described A component and B component is 4:1;
Described A component comprises the composition of following weight part:
Described B component comprises the composition of following weight part:
Solidifying agent 1085C26 part, coupling agent KH5500.75 part, 1.5 parts of white carbon blacks.
The preparation method of the antifouling anticorrosion epoxy coating of above-mentioned painting under water comprises the steps:
(1) preparation of A component: in described ratio Resins, epoxy Resins, epoxy E-51, Resins, epoxy epoxy resin E-44, thinner KB-62, wetting agent BYK-P104S, defoamer BYK-A530 and flow agent BYK-361N are poured in the dispersed with stirring still successively, stir by 600 rev/mins rotating speeds; Add stain control agent Mocide88, stirred 20 minutes by 300 rev/mins rotating speeds, the back that stirs adds white carbon black, stirred 20 minutes by 300 rev/mins rotating speeds, add talcum powder and barium sulfate after stirring, stirred 20 minutes by 300 rev/mins rotating speeds, to being uniformly dispersed; It is 20-30 μ m that mixture after grinding stirs makes its particle diameter; Add micaceous iron oxide gray at last, stirred 40 minutes by 600 rev/mins rotating speeds, package spare after evenly disperseing.
(2) preparation B component: solidifying agent 1085C, coupling agent KH550 and white carbon black are joined in the encloses container stir according to the above ratio, package spare;
(3) the B component for preparing of the A component that step (1) is prepared and step (2) mixes according to the above ratio, namely makes the antifouling anticorrosion epoxy-mica ferric oxide ash coating under water of grey, and its performance data sees Table 4.
Table 4
Claims (8)
1. the antifouling anticorrosion epoxy coating of painting under water is characterized in that described coating is made up of A component and B component, and the weight ratio of described A component and B component is 3-5:1;
Described A component comprises the composition of following weight part:
Bisphenol A epoxide resin 40-50 part, thinner 4-8 part, wetting agent 0.15-0.35 part, defoamer 0.1-0.35 part, flow agent 0.05-0.35 part, stain control agent 5-15 part, anticorrosive packing 15-30 part, 2-8 parts of thixotropic agent, auxiliary packing 5-18 part, pigment 0-8 part;
Described B component comprises the composition of following weight part:
22-28 parts in solidifying agent, 0.72-0.78 part of coupling agent, 1.5-2.5 parts of thixotropic agent.
2. coating as claimed in claim 1 is characterized in that, the weight ratio of described A component and B component is 4:1.
3. coating as claimed in claim 1 is characterized in that, described B component comprises the composition of following weight part:
25 parts in solidifying agent, 0.75 part of coupling agent, 2.5 parts of thixotropic agent.
4. coating as claimed in claim 1 is characterized in that, in the described A component: bisphenol A epoxide resin is E-44 and/or E-51; Thinner is KB-62; Wetting agent is BYK-307 or BYK-P104S; Defoamer is BYK-A530; Flow agent is BYK-361N; Stain control agent is Mocide CD-30 or Mocide88; Anticorrosive packing is glass flake or iron mica; Thixotropic agent is white carbon black, and auxiliary packing is one or more in aluminium triphosphate, barium sulfate or the talcum powder; Pigment is one or both in titanium dioxide or the ferric oxide;
In the described B component: solidifying agent is 1085B and/or 1085C; Coupling agent is silane coupling agent; Thixotropic agent is white carbon black.
5. coating as claimed in claim 4 is characterized in that, described ferric oxide comprises iron oxide yellow, red iron oxide, iron oxide blue, iron oxide green or iron oxide black.
6. coating as claimed in claim 4 is characterized in that, described silane coupling agent is ND-42, KH550 or KH560.
7. a method for preparing each described coating of claim 1 to 6 is characterized in that, described method comprises the steps:
(1) preparation A component: in described ratio bisphenol A epoxide resin, thinner, wetting agent, defoamer and flow agent are poured in the dispersed with stirring still and to be stirred; Adding sanitas stirs; Adding thixotropic agent stirs; Add auxiliary packing and pigment, stir; Mixture after grinding stirs adds anticorrosive packing at last and stirs, and is standby;
(2) preparation B component: in described ratio solidifying agent, coupling agent and thixotropic agent are joined in the encloses container and to stir, standby;
(3) the B component for preparing of the A component that step (1) is prepared and step (2) mixes in described ratio, namely gets coating.
8. method as claimed in claim 7 is characterized in that, described step (1) is: in described ratio bisphenol A epoxide resin, thinner, wetting agent, defoamer and flow agent are poured in the dispersed with stirring still, stirred by 500-700 rev/mins rotating speeds; Add stain control agent, stir by 200-400 rev/mins rotating speeds; Add thixotropic agent, stir by 200-400 rev/mins rotating speeds; Add auxiliary packing and pigment, stir by 200-400 rev/mins rotating speeds; It is 20-30 μ m that mixture after grinding stirs makes its particle diameter; Add anticorrosive packing at last, stir by 500-700 rev/mins rotating speeds, standby.
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| CN104559678A (en) * | 2015-01-28 | 2015-04-29 | 中远关西涂料化工（天津）有限公司 | Temperature-difference resistant two-component modified epoxy coating for offshore platform |
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| CN110172288A (en) * | 2019-05-20 | 2019-08-27 | 长沙普照生化科技有限公司 | A kind of underwater composite anti-corrosive coating and preparation method thereof |
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| CN111410821A (en) * | 2020-04-22 | 2020-07-14 | 黄河水利水电开发总公司监测维修分公司 | Grouting material for centralized water leakage defect and grouting method thereof |
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| CN112251132A (en) * | 2020-11-04 | 2021-01-22 | 成都海程防腐涂料有限公司 | Paint special for antifouling enamel for corrosion-resistant decoration protection of water pool and preparation method thereof |
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Application publication date: 20130911 |